240rb26 [username] look in here!!

[IvoryJ30t]

ok, let me start.

a while ago, i stated that i abandoned my thoughts of an RB in the J30 in favor of a fully built VH45. well, that is gonna take just short of eternity to fund, so in the meantime we have a new project on our hands.

i have a long time friend [240rb26] that is currently in the military. he will be comming home around december, and we have a 95 240 SE thats just begging for an RB.

now, he's set on the RB26.

however, its my feeling that the RB25 with a mild build [rods, pistons, metal HG, fresh bearings, seals, water pump, ect] would outperform a stock block rb26, and be stronger for similar prices.

not to mention the simplified plumbing of a single turbo.

now, since this will be on a budget, wouldnt the 25 make more sense?

no need to ditch the awd transmission and buy the rb25 trans seperately, i could massage the 25's crossmember into the s14 or use mounts, and only one turbo to upgrade instead of two.

an rb25 block with rods and pistons would be tougher than a stock rb26.

basically what im looking for is a verification that the rb25 will be cheaper and easier to upgrade and make good power with.

now, from reading "other" forums and useless information from people who dont know what their talking about, he has the idea that the wiring harness has to be sent out, and various other stories such as the RB motors making the s chassis nose heavy and handle badly.

he originally wanted an SR20. lets get him on the right track with the right information.
Modified by IvoryJ30t at 4:15 PM 10/19/2004

[NISMO_RB25]

hmm how to answer this.

Yes

The 26 is an awsome motor, but depending on your goals the 25 can often get you there faster and cheaper.

If you want 300-500hp and you are planning on building the motor anyway the 25 is probably the way to go

If you want more, start with the 26.

[IvoryJ30t]

we have to see where he wants to go with this.

he just has read too much misinformation for me to correct it on my own. at least this way, he can get the facts straight, and make an informed decision based on actual facts.

hes in germany right now, so he probably wont see this until the morning.

i want him to know whats going on, and since its his car, i want him to settle on his setup so i can put it together in one shot, and not be mixing and matching combos.

[Nameless EJ6]

Go with the RB25DET.

[S13Sil-line]

RB25DET

[IvoryJ30t]

what i had in mind was 350-400 whp would probably be perfect.

stock rb25 blocknew seals, water pump, thermostattiming belt, tensionermetal head gasketoil cooler, remote filter mount, oil thermostatGT35R or 65 lb/hr GT30R40 mm tial w/ adapter block [if it fits??]front mountz32 or supra fuel pump550 injectors, nismo FPRgreddy emanage/E-01Z32 or G50 MAFfull 3" exhaustaluminum radiatormanual conversionACT clutchz32 brakestein coilovers

various odds and ends [z32 fuel filter, tires, ect]

thats my plan at least.
Modified by IvoryJ30t at 6:26 PM 10/19/2004

[IvoryJ30t]

the car has 5 lug hubs, leather interior.

its a 95 SE.

do all 5 lug SE's have a viscous lsd? i dont know all the different options the 240's came with.

my friend [240rb26] said that someone he knows told him that all 5 lug 240's have lsd.

is this true?

[Wulfgang]

All S14 SE's are 5-lug.

All SE's are not VLSD. Only those with ABS had VLSD. Asad (on freshalloy) has a page on this topic).

[IvoryJ30t]

ok, im pretty sure its abs.

i didnt spend to much time looking at the motor, i was making sure the car was straight with no rust/chassis damage.

[IvoryJ30t]

what thickness MHG works the best with the 25?

i dont want to open up the quench area too much and make detonation worse.

[BoostFab]

i like to know about the conecting rod's bearing, i'm not sure the source for them?

[240rb26]

man, i check my **** on a minute by minute basis. **** workin on hummers, i am chillin with a broken foot![

[240rb26]

hey so i appreciate all your guys help and advice, i am just misinformed by other mechanics i talk to and are stubbporn as hell. i mean, i am surrounded by people who drive civics and foci and think they "have the nices whip on base"

they are the reasons why i am getting out.

there is gonna be a bit of a budget but i will be collecting from gi bill and my broken foot. on top i will have a part time job.

i was probably plastered when i said some dumb $h!T about having the fastest car or whatever...understand i have always had a v8 and rear wheel drive, so i naturally think bigger is better. i work on these crappy hummvees. tryin to learn about cars more. done some work to my 86 audi a100 but it is simple crap.

i appreciate your help. all of you.

[IvoryJ30t]

i like to know about the conecting rod's bearing, i'm not sure the source for them?

probably best with stock.

how are those F1 black bearings? they are one of the only aftermarket bearings ive seen for RB's.

ive been searching, and i cant find the optimum head gasket thickness.

what seems to be the concensus? 1.2 mm?

[RMiller]

How about stock head gasket.

[theXfiend]

RB26 should have about your horsepower goals with just an intake and an exhaust, they're horribly underrated from japan.

I'd get the rB25 tho, cause what you save over the RB26 you can mod the RB25 to the HP you want.

can you handle a 2800lb 400HP car? most people couldnt....

[IvoryJ30t]

i can handle that car, ive driven much faster.

once its done, were gonna be taking it little by little until he gets used to it, because hes been driving humvees for a while and is gonna have to readjust.

[hannibal]

wow, I thought you guys wouldve screamed RB26!All of the reasons for the RB25 over RB26 make sense to me. Do you need to build the block for these power levels, or is it more of an insurance thing? How much boost are you planning for the GT30 to reach 400hp?

BTW, all 95's with leather have ABS and VLSD

[IvoryJ30t]

good, so the car does have a VLSD.

im still in the air with the turbo. the GT30R will give real nice response, it would be perfect if i could pull 350-375 whp out of it on 93.

ill probably hold off on the turbo for a little while depending on how this goes. i dont want to throw him into a 400hp car off the bat so he goes and wrecks it.

the GT30R [57 trim, t04s housing, .82 exhaust] should get him awesome bottom end, and hopefully around 350 whp at 18-20 psi on 93 pump gas if i figure correctly.

the whole thing is that i dont want to strap the car with too big a turbo, so the car is slow down low and violent up top.

ive been spending all my time working out my setup for a VH45, so i have a totally different setup in my head, and i might be off on the RB's turbo setup.

basically, hes getting back around december. around then, i want to have the clip on the way at that time, and in the car by feb-march.

around here [northeast] the weather is still kinda crappy at that time, so i want to have the cars suspension done, and the motor in with it supporting mods [fuel pump, injectors, fpr, clutch, emanage/e01, exhaust and IC]

he can drive that around for a month or so and get comfortable with the car. then it gets the remainder [turbo, ect].
Modified by IvoryJ30t at 8:02 PM 10/26/2004

[smokeyT]

i like ivoryj's planning, as i have known him for years. the car is sorta "our" project, since, like he said, i have been driving hummers (and my weak *** audi) for the past 3 years. well, i did have an 86 bmw 525 and it was a mean car for a little while. (didnt crash, had to return it)

dont worry IvoryJ30t- you will be the only other person i let drive the beast.still like the rb25 cause we can drop it in and work it up as we go along, and as the money comes in.

[IvoryJ30t]

a new name again?? haha, ive been in the bronx for a few days, and i read this and you confused the hell out of me.